examples/bbdev: add sample app
[dpdk.git] / examples / bbdev_app / main.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2017 Intel Corporation
3  */
4
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8 #include <stdint.h>
9 #include <inttypes.h>
10 #include <sys/types.h>
11 #include <sys/unistd.h>
12 #include <sys/queue.h>
13 #include <stdarg.h>
14 #include <ctype.h>
15 #include <errno.h>
16 #include <math.h>
17 #include <assert.h>
18 #include <getopt.h>
19 #include <signal.h>
20
21 #include "rte_atomic.h"
22 #include "rte_common.h"
23 #include "rte_eal.h"
24 #include "rte_cycles.h"
25 #include "rte_ether.h"
26 #include "rte_ethdev.h"
27 #include "rte_ip.h"
28 #include "rte_lcore.h"
29 #include "rte_malloc.h"
30 #include "rte_mbuf.h"
31 #include "rte_memory.h"
32 #include "rte_mempool.h"
33 #include "rte_log.h"
34 #include "rte_bbdev.h"
35 #include "rte_bbdev_op.h"
36
37 /* LLR values - negative value for '1' bit */
38 #define LLR_1_BIT 0x81
39 #define LLR_0_BIT 0x7F
40
41 #define MAX_PKT_BURST 32
42 #define NB_MBUF 8191
43 #define MEMPOOL_CACHE_SIZE 256
44
45 /* Hardcoded K value */
46 #define K 40
47 #define NCB (3 * RTE_ALIGN_CEIL(K + 4, 32))
48
49 #define CRC_24B_LEN 3
50
51 /* Configurable number of RX/TX ring descriptors */
52 #define RTE_TEST_RX_DESC_DEFAULT 128
53 #define RTE_TEST_TX_DESC_DEFAULT 512
54
55 #define BBDEV_ASSERT(a) do { \
56         if (!(a)) { \
57                 usage(prgname); \
58                 return -1; \
59         } \
60 } while (0)
61
62 static const struct rte_eth_conf port_conf = {
63         .rxmode = {
64                 .mq_mode = ETH_MQ_RX_NONE,
65                 .max_rx_pkt_len = ETHER_MAX_LEN,
66                 .split_hdr_size = 0,
67                 .header_split = 0, /**< Header Split disabled */
68                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
69                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
70                 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
71                 .hw_strip_crc = 0, /**< CRC stripped by hardware */
72         },
73         .txmode = {
74                 .mq_mode = ETH_MQ_TX_NONE,
75         },
76 };
77
78 struct rte_bbdev_op_turbo_enc def_op_enc = {
79         /* These values are arbitrarily put, and does not map to the real
80          * values for the data received from ethdev ports
81          */
82         .rv_index = 0,
83         .code_block_mode = 1,
84         .cb_params = {
85                 .k = K,
86         },
87         .op_flags = RTE_BBDEV_TURBO_CRC_24A_ATTACH
88 };
89
90 struct rte_bbdev_op_turbo_dec def_op_dec = {
91         /* These values are arbitrarily put, and does not map to the real
92          * values for the data received from ethdev ports
93          */
94         .code_block_mode = 1,
95         .cb_params = {
96                 .k = K,
97         },
98         .rv_index = 0,
99         .iter_max = 8,
100         .iter_min = 4,
101         .ext_scale = 15,
102         .num_maps = 0,
103         .op_flags = RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN
104 };
105
106 struct app_config_params {
107         /* Placeholders for app params */
108         uint16_t port_id;
109         uint16_t bbdev_id;
110         uint64_t enc_core_mask;
111         uint64_t dec_core_mask;
112
113         /* Values filled during init time */
114         uint16_t enc_queue_ids[RTE_MAX_LCORE];
115         uint16_t dec_queue_ids[RTE_MAX_LCORE];
116         uint16_t num_enc_cores;
117         uint16_t num_dec_cores;
118 };
119
120 struct lcore_statistics {
121         unsigned int enqueued;
122         unsigned int dequeued;
123         unsigned int rx_lost_packets;
124         unsigned int enc_to_dec_lost_packets;
125         unsigned int tx_lost_packets;
126 } __rte_cache_aligned;
127
128 /** each lcore configuration */
129 struct lcore_conf {
130         uint64_t core_type;
131
132         unsigned int port_id;
133         unsigned int rx_queue_id;
134         unsigned int tx_queue_id;
135
136         unsigned int bbdev_id;
137         unsigned int enc_queue_id;
138         unsigned int dec_queue_id;
139
140         uint8_t llr_temp_buf[NCB];
141
142         struct rte_mempool *bbdev_dec_op_pool;
143         struct rte_mempool *bbdev_enc_op_pool;
144         struct rte_mempool *enc_out_pool;
145         struct rte_ring *enc_to_dec_ring;
146
147         struct lcore_statistics *lcore_stats;
148 } __rte_cache_aligned;
149
150 struct stats_lcore_params {
151         struct lcore_conf *lconf;
152         struct app_config_params *app_params;
153 };
154
155
156 static const struct app_config_params def_app_config = {
157         .port_id = 0,
158         .bbdev_id = 0,
159         .enc_core_mask = 0x2,
160         .dec_core_mask = 0x4,
161         .num_enc_cores = 1,
162         .num_dec_cores = 1,
163 };
164
165 static rte_atomic16_t global_exit_flag;
166
167 /* display usage */
168 static inline void
169 usage(const char *prgname)
170 {
171         printf("%s [EAL options] "
172                         "  --\n"
173                         "  --enc_cores - number of encoding cores (default = 0x2)\n"
174                         "  --dec_cores - number of decoding cores (default = 0x4)\n"
175                         "  --port_id - Ethernet port ID (default = 0)\n"
176                         "  --bbdev_id - BBDev ID (default = 0)\n"
177                         "\n", prgname);
178 }
179
180 /* parse core mask */
181 static inline
182 uint16_t bbdev_parse_mask(const char *mask)
183 {
184         char *end = NULL;
185         unsigned long pm;
186
187         /* parse hexadecimal string */
188         pm = strtoul(mask, &end, 16);
189         if ((mask[0] == '\0') || (end == NULL) || (*end != '\0'))
190                 return 0;
191
192         return pm;
193 }
194
195 /* parse core mask */
196 static inline
197 uint16_t bbdev_parse_number(const char *mask)
198 {
199         char *end = NULL;
200         unsigned long pm;
201
202         /* parse hexadecimal string */
203         pm = strtoul(mask, &end, 10);
204         if ((mask[0] == '\0') || (end == NULL) || (*end != '\0'))
205                 return 0;
206
207         return pm;
208 }
209
210 static int
211 bbdev_parse_args(int argc, char **argv,
212                 struct app_config_params *app_params)
213 {
214         int optind = 0;
215         int opt;
216         int opt_indx = 0;
217         char *prgname = argv[0];
218
219         static struct option lgopts[] = {
220                 { "enc_core_mask", required_argument, 0, 'e' },
221                 { "dec_core_mask", required_argument, 0, 'd' },
222                 { "port_id", required_argument, 0, 'p' },
223                 { "bbdev_id", required_argument, 0, 'b' },
224                 { NULL, 0, 0, 0 }
225         };
226
227         BBDEV_ASSERT(argc != 0);
228         BBDEV_ASSERT(argv != NULL);
229         BBDEV_ASSERT(app_params != NULL);
230
231         while ((opt = getopt_long(argc, argv, "e:d:p:b:", lgopts, &opt_indx)) !=
232                 EOF) {
233                 switch (opt) {
234                 case 'e':
235                         app_params->enc_core_mask =
236                                 bbdev_parse_mask(optarg);
237                         if (app_params->enc_core_mask == 0) {
238                                 usage(prgname);
239                                 return -1;
240                         }
241                         app_params->num_enc_cores =
242                                 __builtin_popcount(app_params->enc_core_mask);
243                         break;
244
245                 case 'd':
246                         app_params->dec_core_mask =
247                                 bbdev_parse_mask(optarg);
248                         if (app_params->dec_core_mask == 0) {
249                                 usage(prgname);
250                                 return -1;
251                         }
252                         app_params->num_dec_cores =
253                                 __builtin_popcount(app_params->dec_core_mask);
254                         break;
255
256                 case 'p':
257                         app_params->port_id = bbdev_parse_number(optarg);
258                         break;
259
260                 case 'b':
261                         app_params->bbdev_id = bbdev_parse_number(optarg);
262                         break;
263
264                 default:
265                         usage(prgname);
266                         return -1;
267                 }
268         }
269         optind = 0;
270         return optind;
271 }
272
273 static void
274 signal_handler(int signum)
275 {
276         printf("\nSignal %d received\n", signum);
277         rte_atomic16_set(&global_exit_flag, 1);
278 }
279
280 static void
281 print_mac(unsigned int portid, struct ether_addr *bbdev_ports_eth_address)
282 {
283         printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
284                         (unsigned int) portid,
285                         bbdev_ports_eth_address[portid].addr_bytes[0],
286                         bbdev_ports_eth_address[portid].addr_bytes[1],
287                         bbdev_ports_eth_address[portid].addr_bytes[2],
288                         bbdev_ports_eth_address[portid].addr_bytes[3],
289                         bbdev_ports_eth_address[portid].addr_bytes[4],
290                         bbdev_ports_eth_address[portid].addr_bytes[5]);
291 }
292
293 static inline void
294 pktmbuf_free_bulk(struct rte_mbuf **mbufs, unsigned int nb_to_free)
295 {
296         unsigned int i;
297         for (i = 0; i < nb_to_free; ++i)
298                 rte_pktmbuf_free(mbufs[i]);
299 }
300
301 static inline void
302 pktmbuf_userdata_free_bulk(struct rte_mbuf **mbufs, unsigned int nb_to_free)
303 {
304         unsigned int i;
305         for (i = 0; i < nb_to_free; ++i) {
306                 struct rte_mbuf *rx_pkt = mbufs[i]->userdata;
307                 rte_pktmbuf_free(rx_pkt);
308                 rte_pktmbuf_free(mbufs[i]);
309         }
310 }
311
312 /* Check the link status of all ports in up to 9s, and print them finally */
313 static int
314 check_port_link_status(uint16_t port_id)
315 {
316 #define CHECK_INTERVAL 100 /* 100ms */
317 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
318         uint8_t count;
319         struct rte_eth_link link;
320
321         printf("\nChecking link status.");
322         fflush(stdout);
323
324         for (count = 0; count <= MAX_CHECK_TIME &&
325                         !rte_atomic16_read(&global_exit_flag); count++) {
326                 memset(&link, 0, sizeof(link));
327                 rte_eth_link_get_nowait(port_id, &link);
328
329                 if (link.link_status) {
330                         const char *dp = (link.link_duplex ==
331                                 ETH_LINK_FULL_DUPLEX) ?
332                                 "full-duplex" : "half-duplex";
333                         printf("\nPort %u Link Up - speed %u Mbps - %s\n",
334                                 port_id, link.link_speed, dp);
335                         return 0;
336                 }
337                 printf(".");
338                 fflush(stdout);
339                 rte_delay_ms(CHECK_INTERVAL);
340         }
341
342         printf("\nPort %d Link Down\n", port_id);
343         return 0;
344 }
345
346 static inline void
347 add_ether_hdr(struct rte_mbuf *pkt_src, struct rte_mbuf *pkt_dst)
348 {
349         struct ether_hdr *eth_from;
350         struct ether_hdr *eth_to;
351
352         eth_from = rte_pktmbuf_mtod(pkt_src, struct ether_hdr *);
353         eth_to = rte_pktmbuf_mtod(pkt_dst, struct ether_hdr *);
354
355         /* copy header */
356         rte_memcpy(eth_to, eth_from, sizeof(struct ether_hdr));
357 }
358
359 static inline void
360 add_awgn(struct rte_mbuf **mbufs, uint16_t num_pkts)
361 {
362         RTE_SET_USED(mbufs);
363         RTE_SET_USED(num_pkts);
364 }
365
366 /* Encoder output to Decoder input adapter. The Decoder accepts only soft input
367  * so each bit of the encoder output must be translated into one byte of LLR. If
368  * Sub-block Deinterleaver is bypassed, which is the case, the padding bytes
369  * must additionally be insterted at the end of each sub-block.
370  */
371 static inline void
372 transform_enc_out_dec_in(struct rte_mbuf **mbufs, uint8_t *temp_buf,
373                 uint16_t num_pkts, uint16_t k)
374 {
375         uint16_t i, l, j;
376         uint16_t start_bit_idx;
377         uint16_t out_idx;
378         uint16_t d = k + 4;
379         uint16_t kpi = RTE_ALIGN_CEIL(d, 32);
380         uint16_t nd = kpi - d;
381         uint16_t ncb = 3 * kpi;
382
383         for (i = 0; i < num_pkts; ++i) {
384                 uint16_t pkt_data_len = rte_pktmbuf_data_len(mbufs[i]) -
385                                 sizeof(struct ether_hdr);
386
387                 /* Resize the packet if needed */
388                 if (pkt_data_len < ncb) {
389                         char *data = rte_pktmbuf_append(mbufs[i],
390                                         ncb - pkt_data_len);
391                         if (data == NULL)
392                                 printf(
393                                         "Not enough space in decoder input packet");
394                 }
395
396                 /* Translate each bit into 1 LLR byte. */
397                 start_bit_idx = 0;
398                 out_idx = 0;
399                 for (j = 0; j < 3; ++j) {
400                         for (l = start_bit_idx; l < start_bit_idx + d; ++l) {
401                                 uint8_t *data = rte_pktmbuf_mtod_offset(
402                                         mbufs[i], uint8_t *,
403                                         sizeof(struct ether_hdr) + (l >> 3));
404                                 if (*data & (0x80 >> (l & 7)))
405                                         temp_buf[out_idx] = LLR_1_BIT;
406                                 else
407                                         temp_buf[out_idx] = LLR_0_BIT;
408                                 ++out_idx;
409                         }
410                         /* Padding bytes should be at the end of the sub-block.
411                          */
412                         memset(&temp_buf[out_idx], 0, nd);
413                         out_idx += nd;
414                         start_bit_idx += d;
415                 }
416
417                 rte_memcpy(rte_pktmbuf_mtod_offset(mbufs[i], uint8_t *,
418                                 sizeof(struct ether_hdr)), temp_buf, ncb);
419         }
420 }
421
422 static inline void
423 verify_data(struct rte_mbuf **mbufs, uint16_t num_pkts)
424 {
425         uint16_t i;
426         for (i = 0; i < num_pkts; ++i) {
427                 struct rte_mbuf *out = mbufs[i];
428                 struct rte_mbuf *in = out->userdata;
429
430                 if (memcmp(rte_pktmbuf_mtod_offset(in, uint8_t *,
431                                 sizeof(struct ether_hdr)),
432                                 rte_pktmbuf_mtod_offset(out, uint8_t *,
433                                 sizeof(struct ether_hdr)),
434                                 K / 8 - CRC_24B_LEN))
435                         printf("Input and output buffers are not equal!\n");
436         }
437 }
438
439 static int
440 initialize_ports(struct app_config_params *app_params,
441                 struct rte_mempool *ethdev_mbuf_mempool)
442 {
443         int ret;
444         uint16_t port_id = app_params->port_id;
445         uint16_t q;
446         /* ethernet addresses of ports */
447         struct ether_addr bbdev_port_eth_addr;
448
449         /* initialize ports */
450         printf("\nInitializing port %u...\n", app_params->port_id);
451         ret = rte_eth_dev_configure(port_id, app_params->num_enc_cores,
452                 app_params->num_dec_cores, &port_conf);
453
454         if (ret < 0) {
455                 printf("Cannot configure device: err=%d, port=%u\n",
456                         ret, port_id);
457                 return -1;
458         }
459
460         /* initialize RX queues for encoder */
461         for (q = 0; q < app_params->num_enc_cores; q++) {
462                 ret = rte_eth_rx_queue_setup(port_id, q,
463                         RTE_TEST_RX_DESC_DEFAULT,
464                         rte_eth_dev_socket_id(port_id),
465                         NULL, ethdev_mbuf_mempool);
466                 if (ret < 0) {
467                         printf("rte_eth_rx_queue_setup: err=%d, queue=%u\n",
468                                 ret, q);
469                         return -1;
470                 }
471         }
472         /* initialize TX queues for decoder */
473         for (q = 0; q < app_params->num_dec_cores; q++) {
474                 ret = rte_eth_tx_queue_setup(port_id, q,
475                         RTE_TEST_TX_DESC_DEFAULT,
476                         rte_eth_dev_socket_id(port_id), NULL);
477                 if (ret < 0) {
478                         printf("rte_eth_tx_queue_setup: err=%d, queue=%u\n",
479                                 ret, q);
480                         return -1;
481                 }
482         }
483
484         rte_eth_promiscuous_enable(port_id);
485
486         rte_eth_macaddr_get(port_id, &bbdev_port_eth_addr);
487         print_mac(port_id, &bbdev_port_eth_addr);
488
489         return 0;
490 }
491
492 static void
493 lcore_conf_init(struct app_config_params *app_params,
494                 struct lcore_conf *lcore_conf,
495                 struct rte_mempool **bbdev_op_pools,
496                 struct rte_mempool *bbdev_mbuf_mempool,
497                 struct rte_ring *enc_to_dec_ring,
498                 struct lcore_statistics *lcore_stats)
499 {
500         unsigned int lcore_id;
501         struct lcore_conf *lconf;
502         uint16_t rx_queue_id = 0;
503         uint16_t tx_queue_id = 0;
504         uint16_t enc_q_id = 0;
505         uint16_t dec_q_id = 0;
506
507         /* Configure lcores */
508         for (lcore_id = 0; lcore_id < 8 * sizeof(uint64_t); ++lcore_id) {
509                 lconf = &lcore_conf[lcore_id];
510                 lconf->core_type = 0;
511
512                 if ((1ULL << lcore_id) & app_params->enc_core_mask) {
513                         lconf->core_type |= (1 << RTE_BBDEV_OP_TURBO_ENC);
514                         lconf->rx_queue_id = rx_queue_id++;
515                         lconf->enc_queue_id =
516                                         app_params->enc_queue_ids[enc_q_id++];
517                 }
518
519                 if ((1ULL << lcore_id) & app_params->dec_core_mask) {
520                         lconf->core_type |= (1 << RTE_BBDEV_OP_TURBO_DEC);
521                         lconf->tx_queue_id = tx_queue_id++;
522                         lconf->dec_queue_id =
523                                         app_params->dec_queue_ids[dec_q_id++];
524                 }
525
526                 lconf->bbdev_enc_op_pool =
527                                 bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC];
528                 lconf->bbdev_dec_op_pool =
529                                 bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC];
530                 lconf->bbdev_id = app_params->bbdev_id;
531                 lconf->port_id = app_params->port_id;
532                 lconf->enc_out_pool = bbdev_mbuf_mempool;
533                 lconf->enc_to_dec_ring = enc_to_dec_ring;
534                 lconf->lcore_stats = &lcore_stats[lcore_id];
535         }
536 }
537
538 static void
539 print_lcore_stats(struct lcore_statistics *lstats, unsigned int lcore_id)
540 {
541         static const char *stats_border = "_______";
542
543         printf("\nLcore %d: %s enqueued count:\t\t%u\n",
544                         lcore_id, stats_border, lstats->enqueued);
545         printf("Lcore %d: %s dequeued count:\t\t%u\n",
546                         lcore_id, stats_border, lstats->dequeued);
547         printf("Lcore %d: %s RX lost packets count:\t\t%u\n",
548                         lcore_id, stats_border, lstats->rx_lost_packets);
549         printf("Lcore %d: %s encoder-to-decoder lost count:\t%u\n",
550                         lcore_id, stats_border,
551                         lstats->enc_to_dec_lost_packets);
552         printf("Lcore %d: %s TX lost packets count:\t\t%u\n",
553                         lcore_id, stats_border, lstats->tx_lost_packets);
554 }
555
556 static void
557 print_stats(struct stats_lcore_params *stats_lcore)
558 {
559         unsigned int l_id;
560         unsigned int bbdev_id = stats_lcore->app_params->bbdev_id;
561         unsigned int port_id = stats_lcore->app_params->port_id;
562         int len, ret, i;
563
564         struct rte_eth_xstat *xstats;
565         struct rte_eth_xstat_name *xstats_names;
566         struct rte_bbdev_stats bbstats;
567         static const char *stats_border = "_______";
568
569         const char clr[] = { 27, '[', '2', 'J', '\0' };
570         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
571
572         /* Clear screen and move to top left */
573         printf("%s%s", clr, topLeft);
574
575         printf("PORT STATISTICS:\n================\n");
576         len = rte_eth_xstats_get(port_id, NULL, 0);
577         if (len < 0)
578                 rte_exit(EXIT_FAILURE,
579                                 "rte_eth_xstats_get(%u) failed: %d", port_id,
580                                 len);
581
582         xstats = calloc(len, sizeof(*xstats));
583         if (xstats == NULL)
584                 rte_exit(EXIT_FAILURE,
585                                 "Failed to calloc memory for xstats");
586
587         ret = rte_eth_xstats_get(port_id, xstats, len);
588         if (ret < 0 || ret > len)
589                 rte_exit(EXIT_FAILURE,
590                                 "rte_eth_xstats_get(%u) len%i failed: %d",
591                                 port_id, len, ret);
592
593         xstats_names = calloc(len, sizeof(*xstats_names));
594         if (xstats_names == NULL)
595                 rte_exit(EXIT_FAILURE,
596                                 "Failed to calloc memory for xstats_names");
597
598         ret = rte_eth_xstats_get_names(port_id, xstats_names, len);
599         if (ret < 0 || ret > len)
600                 rte_exit(EXIT_FAILURE,
601                                 "rte_eth_xstats_get_names(%u) len%i failed: %d",
602                                 port_id, len, ret);
603
604         for (i = 0; i < len; i++) {
605                 if (xstats[i].value > 0)
606                         printf("Port %u: %s %s:\t\t%"PRIu64"\n",
607                                         port_id, stats_border,
608                                         xstats_names[i].name,
609                                         xstats[i].value);
610         }
611
612         printf("\nBBDEV STATISTICS:\n=================\n");
613         rte_bbdev_stats_get(bbdev_id, &bbstats);
614         printf("BBDEV %u: %s enqueue count:\t\t%"PRIu64"\n",
615                         bbdev_id, stats_border,
616                         bbstats.enqueued_count);
617         printf("BBDEV %u: %s dequeue count:\t\t%"PRIu64"\n",
618                         bbdev_id, stats_border,
619                         bbstats.dequeued_count);
620         printf("BBDEV %u: %s enqueue error count:\t\t%"PRIu64"\n",
621                         bbdev_id, stats_border,
622                         bbstats.enqueue_err_count);
623         printf("BBDEV %u: %s dequeue error count:\t\t%"PRIu64"\n\n",
624                         bbdev_id, stats_border,
625                         bbstats.dequeue_err_count);
626
627         printf("LCORE STATISTICS:\n=================\n");
628         for (l_id = 0; l_id < RTE_MAX_LCORE; ++l_id) {
629                 if (stats_lcore->lconf[l_id].core_type == 0)
630                         continue;
631                 print_lcore_stats(stats_lcore->lconf[l_id].lcore_stats, l_id);
632         }
633 }
634
635 static int
636 stats_loop(void *arg)
637 {
638         struct stats_lcore_params *stats_lcore = arg;
639
640         while (!rte_atomic16_read(&global_exit_flag)) {
641                 print_stats(stats_lcore);
642                 rte_delay_ms(500);
643         }
644
645         return 0;
646 }
647
648 static inline void
649 run_encoding(struct lcore_conf *lcore_conf)
650 {
651         uint16_t i;
652         uint16_t port_id, rx_queue_id;
653         uint16_t bbdev_id, enc_queue_id;
654         uint16_t nb_rx, nb_enq, nb_deq, nb_sent;
655         struct rte_mbuf *rx_pkts_burst[MAX_PKT_BURST];
656         struct rte_mbuf *enc_out_pkts[MAX_PKT_BURST];
657         struct rte_bbdev_enc_op *bbdev_ops_burst[MAX_PKT_BURST];
658         struct lcore_statistics *lcore_stats;
659         struct rte_mempool *bbdev_op_pool, *enc_out_pool;
660         struct rte_ring *enc_to_dec_ring;
661         const int in_data_len = (def_op_enc.cb_params.k / 8) - CRC_24B_LEN;
662
663         lcore_stats = lcore_conf->lcore_stats;
664         port_id = lcore_conf->port_id;
665         rx_queue_id = lcore_conf->rx_queue_id;
666         bbdev_id = lcore_conf->bbdev_id;
667         enc_queue_id = lcore_conf->enc_queue_id;
668         bbdev_op_pool = lcore_conf->bbdev_enc_op_pool;
669         enc_out_pool = lcore_conf->enc_out_pool;
670         enc_to_dec_ring = lcore_conf->enc_to_dec_ring;
671
672         /* Read packet from RX queues*/
673         nb_rx = rte_eth_rx_burst(port_id, rx_queue_id, rx_pkts_burst,
674                         MAX_PKT_BURST);
675         if (!nb_rx)
676                 return;
677
678         if (unlikely(rte_mempool_get_bulk(enc_out_pool, (void **)enc_out_pkts,
679                         nb_rx) != 0)) {
680                 pktmbuf_free_bulk(rx_pkts_burst, nb_rx);
681                 lcore_stats->rx_lost_packets += nb_rx;
682                 return;
683         }
684
685         if (unlikely(rte_bbdev_enc_op_alloc_bulk(bbdev_op_pool, bbdev_ops_burst,
686                         nb_rx) != 0)) {
687                 pktmbuf_free_bulk(enc_out_pkts, nb_rx);
688                 pktmbuf_free_bulk(rx_pkts_burst, nb_rx);
689                 lcore_stats->rx_lost_packets += nb_rx;
690                 return;
691         }
692
693         for (i = 0; i < nb_rx; i++) {
694                 char *data;
695                 const uint16_t pkt_data_len =
696                                 rte_pktmbuf_data_len(rx_pkts_burst[i]) -
697                                 sizeof(struct ether_hdr);
698                 /* save input mbuf pointer for later comparison */
699                 enc_out_pkts[i]->userdata = rx_pkts_burst[i];
700
701                 /* copy ethernet header */
702                 rte_pktmbuf_reset(enc_out_pkts[i]);
703                 data = rte_pktmbuf_append(enc_out_pkts[i],
704                                 sizeof(struct ether_hdr));
705                 if (data == NULL) {
706                         printf(
707                                 "Not enough space for ethernet header in encoder output mbuf\n");
708                         continue;
709                 }
710                 add_ether_hdr(rx_pkts_burst[i], enc_out_pkts[i]);
711
712                 /* set op */
713                 bbdev_ops_burst[i]->turbo_enc = def_op_enc;
714
715                 bbdev_ops_burst[i]->turbo_enc.input.data =
716                                 rx_pkts_burst[i];
717                 bbdev_ops_burst[i]->turbo_enc.input.offset =
718                                 sizeof(struct ether_hdr);
719                 /* Encoder will attach the CRC24B, adjust the length */
720                 bbdev_ops_burst[i]->turbo_enc.input.length = in_data_len;
721
722                 if (in_data_len < pkt_data_len)
723                         rte_pktmbuf_trim(rx_pkts_burst[i], pkt_data_len -
724                                         in_data_len);
725                 else if (in_data_len > pkt_data_len) {
726                         data = rte_pktmbuf_append(rx_pkts_burst[i],
727                                         in_data_len - pkt_data_len);
728                         if (data == NULL)
729                                 printf(
730                                         "Not enough storage in mbuf to perform the encoding\n");
731                 }
732
733                 bbdev_ops_burst[i]->turbo_enc.output.data =
734                                 enc_out_pkts[i];
735                 bbdev_ops_burst[i]->turbo_enc.output.offset =
736                                 sizeof(struct ether_hdr);
737         }
738
739         /* Enqueue packets on BBDevice */
740         nb_enq = rte_bbdev_enqueue_enc_ops(bbdev_id, enc_queue_id,
741                         bbdev_ops_burst, nb_rx);
742         if (unlikely(nb_enq < nb_rx)) {
743                 pktmbuf_userdata_free_bulk(&enc_out_pkts[nb_enq],
744                                 nb_rx - nb_enq);
745                 rte_bbdev_enc_op_free_bulk(&bbdev_ops_burst[nb_enq],
746                                 nb_rx - nb_enq);
747                 lcore_stats->rx_lost_packets += nb_rx - nb_enq;
748
749                 if (!nb_enq)
750                         return;
751         }
752
753         lcore_stats->enqueued += nb_enq;
754
755         /* Dequeue packets from bbdev device*/
756         nb_deq = 0;
757         do {
758                 nb_deq += rte_bbdev_dequeue_enc_ops(bbdev_id, enc_queue_id,
759                                 &bbdev_ops_burst[nb_deq], nb_enq - nb_deq);
760         } while (unlikely(nb_deq < nb_enq));
761
762         lcore_stats->dequeued += nb_deq;
763
764         /* Generate and add AWGN */
765         add_awgn(enc_out_pkts, nb_deq);
766
767         rte_bbdev_enc_op_free_bulk(bbdev_ops_burst, nb_deq);
768
769         /* Enqueue packets to encoder-to-decoder ring */
770         nb_sent = rte_ring_enqueue_burst(enc_to_dec_ring, (void **)enc_out_pkts,
771                         nb_deq, NULL);
772         if (unlikely(nb_sent < nb_deq)) {
773                 pktmbuf_userdata_free_bulk(&enc_out_pkts[nb_sent],
774                                 nb_deq - nb_sent);
775                 lcore_stats->enc_to_dec_lost_packets += nb_deq - nb_sent;
776         }
777 }
778
779 static void
780 run_decoding(struct lcore_conf *lcore_conf)
781 {
782         uint16_t i;
783         uint16_t port_id, tx_queue_id;
784         uint16_t bbdev_id, bbdev_queue_id;
785         uint16_t nb_recv, nb_enq, nb_deq, nb_tx;
786         uint8_t *llr_temp_buf;
787         struct rte_mbuf *recv_pkts_burst[MAX_PKT_BURST];
788         struct rte_bbdev_dec_op *bbdev_ops_burst[MAX_PKT_BURST];
789         struct lcore_statistics *lcore_stats;
790         struct rte_mempool *bbdev_op_pool;
791         struct rte_ring *enc_to_dec_ring;
792
793         lcore_stats = lcore_conf->lcore_stats;
794         port_id = lcore_conf->port_id;
795         tx_queue_id = lcore_conf->tx_queue_id;
796         bbdev_id = lcore_conf->bbdev_id;
797         bbdev_queue_id = lcore_conf->dec_queue_id;
798         bbdev_op_pool = lcore_conf->bbdev_dec_op_pool;
799         enc_to_dec_ring = lcore_conf->enc_to_dec_ring;
800         llr_temp_buf = lcore_conf->llr_temp_buf;
801
802         /* Dequeue packets from the ring */
803         nb_recv = rte_ring_dequeue_burst(enc_to_dec_ring,
804                         (void **)recv_pkts_burst, MAX_PKT_BURST, NULL);
805         if (!nb_recv)
806                 return;
807
808         if (unlikely(rte_bbdev_dec_op_alloc_bulk(bbdev_op_pool, bbdev_ops_burst,
809                         nb_recv) != 0)) {
810                 pktmbuf_userdata_free_bulk(recv_pkts_burst, nb_recv);
811                 lcore_stats->rx_lost_packets += nb_recv;
812                 return;
813         }
814
815         transform_enc_out_dec_in(recv_pkts_burst, llr_temp_buf, nb_recv,
816                         def_op_dec.cb_params.k);
817
818         for (i = 0; i < nb_recv; i++) {
819                 /* set op */
820                 bbdev_ops_burst[i]->turbo_dec = def_op_dec;
821
822                 bbdev_ops_burst[i]->turbo_dec.input.data = recv_pkts_burst[i];
823                 bbdev_ops_burst[i]->turbo_dec.input.offset =
824                                 sizeof(struct ether_hdr);
825                 bbdev_ops_burst[i]->turbo_dec.input.length =
826                                 rte_pktmbuf_data_len(recv_pkts_burst[i])
827                                 - sizeof(struct ether_hdr);
828
829                 bbdev_ops_burst[i]->turbo_dec.hard_output.data =
830                                 recv_pkts_burst[i];
831                 bbdev_ops_burst[i]->turbo_dec.hard_output.offset =
832                                 sizeof(struct ether_hdr);
833         }
834
835         /* Enqueue packets on BBDevice */
836         nb_enq = rte_bbdev_enqueue_dec_ops(bbdev_id, bbdev_queue_id,
837                         bbdev_ops_burst, nb_recv);
838         if (unlikely(nb_enq < nb_recv)) {
839                 pktmbuf_userdata_free_bulk(&recv_pkts_burst[nb_enq],
840                                 nb_recv - nb_enq);
841                 rte_bbdev_dec_op_free_bulk(&bbdev_ops_burst[nb_enq],
842                                 nb_recv - nb_enq);
843                 lcore_stats->rx_lost_packets += nb_recv - nb_enq;
844
845                 if (!nb_enq)
846                         return;
847         }
848
849         lcore_stats->enqueued += nb_enq;
850
851         /* Dequeue packets from BBDevice */
852         nb_deq = 0;
853         do {
854                 nb_deq += rte_bbdev_dequeue_dec_ops(bbdev_id, bbdev_queue_id,
855                                 &bbdev_ops_burst[nb_deq], nb_enq - nb_deq);
856         } while (unlikely(nb_deq < nb_enq));
857
858         lcore_stats->dequeued += nb_deq;
859
860         rte_bbdev_dec_op_free_bulk(bbdev_ops_burst, nb_deq);
861
862         verify_data(recv_pkts_burst, nb_deq);
863
864         /* Free the RX mbufs after verification */
865         for (i = 0; i < nb_deq; ++i)
866                 rte_pktmbuf_free(recv_pkts_burst[i]->userdata);
867
868         /* Transmit the packets */
869         nb_tx = rte_eth_tx_burst(port_id, tx_queue_id, recv_pkts_burst, nb_deq);
870         if (unlikely(nb_tx < nb_deq)) {
871                 pktmbuf_userdata_free_bulk(&recv_pkts_burst[nb_tx],
872                                 nb_deq - nb_tx);
873                 lcore_stats->tx_lost_packets += nb_deq - nb_tx;
874         }
875 }
876
877 static int
878 processing_loop(void *arg)
879 {
880         struct lcore_conf *lcore_conf = arg;
881         const bool run_encoder = (lcore_conf->core_type &
882                         (1 << RTE_BBDEV_OP_TURBO_ENC));
883         const bool run_decoder = (lcore_conf->core_type &
884                         (1 << RTE_BBDEV_OP_TURBO_DEC));
885
886         while (!rte_atomic16_read(&global_exit_flag)) {
887                 if (run_encoder)
888                         run_encoding(lcore_conf);
889                 if (run_decoder)
890                         run_decoding(lcore_conf);
891         }
892
893         return 0;
894 }
895
896 static int
897 prepare_bbdev_device(unsigned int dev_id, struct rte_bbdev_info *info,
898                 struct app_config_params *app_params)
899 {
900         int ret;
901         unsigned int q_id, dec_q_id, enc_q_id;
902         struct rte_bbdev_queue_conf qconf = {0};
903         uint16_t dec_qs_nb = app_params->num_dec_cores;
904         uint16_t enc_qs_nb = app_params->num_enc_cores;
905         uint16_t tot_qs = dec_qs_nb + enc_qs_nb;
906
907         ret = rte_bbdev_setup_queues(dev_id, tot_qs, info->socket_id);
908         if (ret < 0)
909                 rte_exit(EXIT_FAILURE,
910                                 "ERROR(%d): BBDEV %u not configured properly\n",
911                                 ret, dev_id);
912
913         /* setup device DEC queues */
914         qconf.socket = info->socket_id;
915         qconf.queue_size = info->drv.queue_size_lim;
916         qconf.op_type = RTE_BBDEV_OP_TURBO_DEC;
917
918         for (q_id = 0, dec_q_id = 0; q_id < dec_qs_nb; q_id++) {
919                 ret = rte_bbdev_queue_configure(dev_id, q_id, &qconf);
920                 if (ret < 0)
921                         rte_exit(EXIT_FAILURE,
922                                         "ERROR(%d): BBDEV %u DEC queue %u not configured properly\n",
923                                         ret, dev_id, q_id);
924                 app_params->dec_queue_ids[dec_q_id++] = q_id;
925         }
926
927         /* setup device ENC queues */
928         qconf.op_type = RTE_BBDEV_OP_TURBO_ENC;
929
930         for (q_id = dec_qs_nb, enc_q_id = 0; q_id < tot_qs; q_id++) {
931                 ret = rte_bbdev_queue_configure(dev_id, q_id, &qconf);
932                 if (ret < 0)
933                         rte_exit(EXIT_FAILURE,
934                                         "ERROR(%d): BBDEV %u ENC queue %u not configured properly\n",
935                                         ret, dev_id, q_id);
936                 app_params->enc_queue_ids[enc_q_id++] = q_id;
937         }
938
939         ret = rte_bbdev_start(dev_id);
940
941         if (ret != 0)
942                 rte_exit(EXIT_FAILURE, "ERROR(%d): BBDEV %u not started\n",
943                         ret, dev_id);
944
945         printf("BBdev %u started\n", dev_id);
946
947         return 0;
948 }
949
950 static inline bool
951 check_matching_capabilities(uint64_t mask, uint64_t required_mask)
952 {
953         return (mask & required_mask) == required_mask;
954 }
955
956 static void
957 enable_bbdev(struct app_config_params *app_params)
958 {
959         struct rte_bbdev_info dev_info;
960         const struct rte_bbdev_op_cap *op_cap;
961         uint16_t bbdev_id = app_params->bbdev_id;
962         bool encoder_capable = false;
963         bool decoder_capable = false;
964
965         rte_bbdev_info_get(bbdev_id, &dev_info);
966         op_cap = dev_info.drv.capabilities;
967
968         while (op_cap->type != RTE_BBDEV_OP_NONE) {
969                 if (op_cap->type == RTE_BBDEV_OP_TURBO_ENC) {
970                         if (check_matching_capabilities(
971                                         op_cap->cap.turbo_enc.capability_flags,
972                                         def_op_enc.op_flags))
973                                 encoder_capable = true;
974                 }
975
976                 if (op_cap->type == RTE_BBDEV_OP_TURBO_DEC) {
977                         if (check_matching_capabilities(
978                                         op_cap->cap.turbo_dec.capability_flags,
979                                         def_op_dec.op_flags))
980                                 decoder_capable = true;
981                 }
982
983                 op_cap++;
984         }
985
986         if (encoder_capable == false)
987                 rte_exit(EXIT_FAILURE,
988                         "The specified BBDev %u doesn't have required encoder capabilities!\n",
989                         bbdev_id);
990         if (decoder_capable == false)
991                 rte_exit(EXIT_FAILURE,
992                         "The specified BBDev %u doesn't have required decoder capabilities!\n",
993                         bbdev_id);
994
995         prepare_bbdev_device(bbdev_id, &dev_info, app_params);
996 }
997
998 int
999 main(int argc, char **argv)
1000 {
1001         int ret;
1002         unsigned int nb_bbdevs, nb_ports, flags, lcore_id;
1003         void *sigret;
1004         struct app_config_params app_params = def_app_config;
1005         struct rte_mempool *ethdev_mbuf_mempool, *bbdev_mbuf_mempool;
1006         struct rte_mempool *bbdev_op_pools[RTE_BBDEV_OP_TYPE_COUNT];
1007         struct lcore_conf lcore_conf[RTE_MAX_LCORE] = { {0} };
1008         struct lcore_statistics lcore_stats[RTE_MAX_LCORE] = { {0} };
1009         struct stats_lcore_params stats_lcore;
1010         struct rte_ring *enc_to_dec_ring;
1011         bool stats_thread_started = false;
1012         unsigned int master_lcore_id = rte_get_master_lcore();
1013
1014         rte_atomic16_init(&global_exit_flag);
1015
1016         sigret = signal(SIGTERM, signal_handler);
1017         if (sigret == SIG_ERR)
1018                 rte_exit(EXIT_FAILURE, "signal(%d, ...) failed", SIGTERM);
1019
1020         sigret = signal(SIGINT, signal_handler);
1021         if (sigret == SIG_ERR)
1022                 rte_exit(EXIT_FAILURE, "signal(%d, ...) failed", SIGINT);
1023
1024         ret = rte_eal_init(argc, argv);
1025         if (ret < 0)
1026                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
1027
1028         argc -= ret;
1029         argv += ret;
1030
1031         /* parse application arguments (after the EAL ones) */
1032         ret = bbdev_parse_args(argc, argv, &app_params);
1033         if (ret < 0)
1034                 rte_exit(EXIT_FAILURE, "Invalid BBDEV arguments\n");
1035
1036         /*create bbdev op pools*/
1037         bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC] =
1038                         rte_bbdev_op_pool_create("bbdev_op_pool_dec",
1039                         RTE_BBDEV_OP_TURBO_DEC, NB_MBUF, 128, rte_socket_id());
1040         bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC] =
1041                         rte_bbdev_op_pool_create("bbdev_op_pool_enc",
1042                         RTE_BBDEV_OP_TURBO_ENC, NB_MBUF, 128, rte_socket_id());
1043
1044         if ((bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC] == NULL) ||
1045                         (bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC] == NULL))
1046                 rte_exit(EXIT_FAILURE, "Cannot create bbdev op pools\n");
1047
1048         /* Create encoder to decoder ring */
1049         flags = (app_params.num_enc_cores == 1) ? RING_F_SP_ENQ : 0;
1050         if (app_params.num_dec_cores == 1)
1051                 flags |= RING_F_SC_DEQ;
1052
1053         enc_to_dec_ring = rte_ring_create("enc_to_dec_ring",
1054                 rte_align32pow2(NB_MBUF), rte_socket_id(), flags);
1055
1056         /* Get the number of available bbdev devices */
1057         nb_bbdevs = rte_bbdev_count();
1058         if (nb_bbdevs <= app_params.bbdev_id)
1059                 rte_exit(EXIT_FAILURE,
1060                                 "%u BBDevs detected, cannot use BBDev with ID %u!\n",
1061                                 nb_bbdevs, app_params.bbdev_id);
1062         printf("Number of bbdevs detected: %d\n", nb_bbdevs);
1063
1064         /* Get the number of available ethdev devices */
1065         nb_ports = rte_eth_dev_count();
1066         if (nb_ports <= app_params.port_id)
1067                 rte_exit(EXIT_FAILURE,
1068                                 "%u ports detected, cannot use port with ID %u!\n",
1069                                 nb_ports, app_params.port_id);
1070
1071         /* create the mbuf mempool for ethdev pkts */
1072         ethdev_mbuf_mempool = rte_pktmbuf_pool_create("ethdev_mbuf_pool",
1073                         NB_MBUF, MEMPOOL_CACHE_SIZE, 0,
1074                         RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
1075         if (ethdev_mbuf_mempool == NULL)
1076                 rte_exit(EXIT_FAILURE, "Cannot create ethdev mbuf mempool\n");
1077
1078         /* create the mbuf mempool for encoder output */
1079         bbdev_mbuf_mempool = rte_pktmbuf_pool_create("bbdev_mbuf_pool",
1080                         NB_MBUF, MEMPOOL_CACHE_SIZE, 0,
1081                         RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
1082         if (bbdev_mbuf_mempool == NULL)
1083                 rte_exit(EXIT_FAILURE, "Cannot create ethdev mbuf mempool\n");
1084
1085         /* initialize ports */
1086         ret = initialize_ports(&app_params, ethdev_mbuf_mempool);
1087
1088         /* Check if all requested lcores are available */
1089         for (lcore_id = 0; lcore_id < 8 * sizeof(uint64_t); ++lcore_id)
1090                 if (((1ULL << lcore_id) & app_params.enc_core_mask) ||
1091                                 ((1ULL << lcore_id) & app_params.dec_core_mask))
1092                         if (!rte_lcore_is_enabled(lcore_id))
1093                                 rte_exit(EXIT_FAILURE,
1094                                                 "Requested lcore_id %u is not enabled!\n",
1095                                                 lcore_id);
1096
1097         /* Start ethernet port */
1098         ret = rte_eth_dev_start(app_params.port_id);
1099         if (ret < 0)
1100                 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
1101                                 ret, app_params.port_id);
1102
1103         ret = check_port_link_status(app_params.port_id);
1104         if (ret < 0)
1105                 exit(EXIT_FAILURE);
1106
1107         /* start BBDevice and save BBDev queue IDs */
1108         enable_bbdev(&app_params);
1109
1110         /* Initialize the port/queue configuration of each logical core */
1111         lcore_conf_init(&app_params, lcore_conf, bbdev_op_pools,
1112                         bbdev_mbuf_mempool, enc_to_dec_ring, lcore_stats);
1113
1114         stats_lcore.app_params = &app_params;
1115         stats_lcore.lconf = lcore_conf;
1116
1117         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1118                 if (lcore_conf[lcore_id].core_type != 0)
1119                         /* launch per-lcore processing loop on slave lcores */
1120                         rte_eal_remote_launch(processing_loop,
1121                                         &lcore_conf[lcore_id], lcore_id);
1122                 else if (!stats_thread_started) {
1123                         /* launch statistics printing loop */
1124                         rte_eal_remote_launch(stats_loop, &stats_lcore,
1125                                         lcore_id);
1126                         stats_thread_started = true;
1127                 }
1128         }
1129
1130         if (!stats_thread_started &&
1131                         lcore_conf[master_lcore_id].core_type != 0)
1132                 rte_exit(EXIT_FAILURE,
1133                                 "Not enough lcores to run the statistics printing loop!");
1134         else if (lcore_conf[master_lcore_id].core_type != 0)
1135                 processing_loop(&lcore_conf[master_lcore_id]);
1136         else if (!stats_thread_started)
1137                 stats_loop(&stats_lcore);
1138
1139         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1140                 ret |= rte_eal_wait_lcore(lcore_id);
1141         }
1142
1143         return ret;
1144 }